Water head for rock drills



INVENTOR.

Filed Nov. 14, 1929 g (72 atJlwlzsc-m H15 A TTORNEY.

Patented Mar. 17, 1931 UNITED STATES PATENT OFF-ICE CHARLES C. HANSEN, 0F EASTON, PENNSYLVANIA, ASSIGNOR T0 .ING 'ERSOLL-BAND COMPANY, OF JERSEY CITY, NEW JERSEY, .A CORPORATION OF'NEW JERSEY WATER HEAD FOR ROCK DRILLS Application filed November 14,1929. Serial No. 407,109.

This invention relates to rock drills, but more particularly to a water head for use in connection with submarine drilling apparatus.

The objects of the invention are to enable an adequate supply of cleansing fluid to be directed into the drill hole for removing the cuttings therefrom, to enable the water head and fluid conveying means to be readily disposed about the working implement, such as a drill steel, and to enable the water head to be readily assembled and disassembled on the working implement.

Other objects will be in part obvious and in part pointed out hereinafter.

In the accompanying drawings forming part of the specification and in which similar reference characters refer to similar parts,

Figure 1 is an elevation of a portion of a submarine drilling apparatus having the invention applied thereto, the invention being shown in section,

Figure 2 is an enlarged sectional elevation of the water head, and

Figure 3 is a side elevation of the water head.

Referring more particularly to the drawings, A designates generally the front end of a rock drill, such as a front head B into which extends a drill steel C to receive the blows of a hammer piston (not shown) whereby said drill steel is actuated.

The drill steel C is illustrated as being of the Leyner type and is accordingly provided with a pair of lugs D which are adapted to interlock with the chuck mechanism (not shown) of the rock drill in a well known manner for retaining the drill steel in the rock drill.

Additional means, such as pawl retainers E, may be provided in the front head to prevent ejection of the drill steel from the said front head, and said pawl retainers may be provided with the usual levers F disposed on the exterior of the front head and having connected thereto a cable or rope for manipulating the pawl retainers E.

In accordance with the present invention, means are provided for supplying cleansing medium, such as Water, to the drill hole G be which may be also of semi-circular shape and intermediate the ends of the recesses Q, are semi-annular grooves B into which extends a lateral flange S carried by the rear end of the pipe K.

The members or half sect-ions L and 0 may be clamped together in any'suitable and con venient manner,as for instance by bolts T which extend through apertures U in the members and have nuts VVthreadedthereon to clamp the members L and O securely together and also to the pipe K. V

In order to supply water to the pipe K the member 0 is provided with a connection X having a passage Y which opens into the recess Q. The end of the connection X is exteriorly threaded for the 7 reception of a threaded coupling Z whereby a hose or pipe 1) leading from a suitable source of water supply may be connected to the connection X,

To the end that the water head J may be suitably supported to assure the correct posit-ion of the outlet opening of the pipe K a ring a is disposed about the connection X between the nut Z and the member 0 and said ring is provided on opposite sides with loops dto which are connected the ends of chain sections 6. The opposite ends ofthe chain sections 6 are linked to a yoke f'which maybe secured to the rock drillA in any suitable manner.

In practice, whenever it is desired to dispose the water head J and the pipe K about the drill steel 0, the drill steel C may first be inserted in the pipe K and then extended into the rock drill'A in the usual manner. Thereafter the flange S of the pipe'K may be placed into the groove R of the member L and the member 0 placed in face to face relationship with the member L so that the flange S of the pipe K will also be engaged by the groove R in the member 0. The members L and 0 will now be in position to receive the bolts U whereby the members may be securely clamped together and also to the pipe K. Thus assembled the device will be in readiness for supplying cleansing liquid to the drill hole, and the admission of such cleansing liquid to the drill hole may be controlled by a suitable valve (not shown) interposed in the hose 1).

From the foregoing it will be readily seen that a substantial seal may be maintained between the water head and the drill steel and also that the said water head is capable of being readily disposed about the drill steel or removed therefrom without requiring the removal of the drill steel from the drill.

I claim:

1. In combination with a rock drill and a drill steel extending into the rock drill to be actuated thereby, of a water head comprising a pair of members in the form 0t halfsections through which the drill steel extends in engagement with said members, a pipe held by the members and encircling the drill steel, a connection for supplying water to the pipe, and means for securing the r. embers together.

2. In combination with a rock drill and a drill steel extending into the rock drill to be actuated thereby, of a water head comprising a pair of members in the form of half-sections having semicircular longitudinally extending grooves forming a bore to slidably engage the drill steel, a pipe encircling the drill steel and having a flange at one end, grooves in the members to receive the flange, a connection on one member to supply water to the pipe, and means for clamping the members to the pipe.

3. In combination with a rock drill and a drill steel having lugs for interlockingly engaging the rock drill, ot a water head com prising a pair of members in the form of halt-sections having semi-circular longitudinally extending grooves in registry with each other and through which the drill steel extends in slidable engagement with said members, a pipe encircling the drill steel and having a lateral flang at one end, semi-annular grooves in the members to receive the flange, a connection to supply water to the pipe, and bolts extending tran. verse-1y through the members to clamp said members together and to the pipe.

4-. In combination with a rock drill and a drill steel having lugs for interlockingly engaging the rock drill, of a water head comprising a pair or" members in the form of halfsections having semi-circular longitudinally extending grooves in registry with each other and through which the drill steel e2;-

specification.

CHARLES C. HANSEN. 

